use PHPUnit\Framework\TestCase;
use Symfony\Component\DependencyInjection\Compiler\CheckReferenceValidityPass;
-use Symfony\Component\DependencyInjection\Reference;
use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Reference;
class CheckReferenceValidityPassTest extends TestCase
{